In-reply-to: <200204101948.g3AJm2Q17249 at acme_actwin.com>
It works for Eheim w/o the check valve since Eheim's diffuser can be
taken apart so that the other side of the plate can be cleaned. Forget
about any "uncleanable" diffuser since it will be jammed up real
quickly.
Hope this helps.
Kenneth